Browsing by Author "Banaitis, Audrius"
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- Development of a conceptual success factors model for construction projects: a case of LithuaniaPublication . Gudiene, Neringa; Banaitis, Audrius; Banaitienė, Nerija; Lopes, JorgeThis paper aims to develop a conceptual critical success factors model for construction projects in Lithuania. The concept of success of construction projects and literature review of critical success factors is discussed in the first part. Conceptual model adapted to Lithuania is developed and its elements are described in the second part. Grouped decision-making matrix for the multiple criteria analysis of critical success factors of construction projects is presented at the end of paper.
- A staged approach for energy retrofitting an old service building: a cost-optimal assessmentPublication . Lopes, Jorge; Oliveira, Rui; Banaitienė, Nerija; Banaitis, AudriusOffice buildings built before the pre-1960 age constitute a relevant group for analyzing the energy performance of the Portuguese building sector. A dynamic energy simulation was used to assess the energy performance of an existing office building located in the town of Bragança, Portugal. By using a staged renovation approach, two passive technologies applied to the building envelope and an efficient domestic hot water system were selected and a financial evaluation through the net saving (NS) method was undertaken to choose the best efficiency measures/packages for improving the building’s energy performance. Real discount rates of 3% and 1% were used in the financial evaluation. Considering the real discount rate of 3%, the results showed that only two out seven retrofit options had a positive financial return. By using the real discount rate of 1%, all retrofit options were found to be financially efficient. The results of the study corroborated those of earlier works that found that the financial profitability of energy renovation investments is very sensitive to the discount rate used in the analysis. The results of the study also suggested that the staged renovation approach used in the analysis is economically feasible, and that this approach is an alternative to one-step renovation approach to help to achieve the country´s energy and climate targets by 2030. Suggestions for future research conducted for office buildings in the different climate zones and other age groups in Portugal are proposed.
- The perception and management of risk in lithuanian construction companyPublication . Banaitienė, Nerija; Banaitis, Audrius; Norkus, Artūras; Lopes, JorgeRisk analysis and management is nowadays a critical factor to successful construction project management, as construction projects tend to be more complex, dynamic, always unique, and competition increasingly tougher. Risk management helps the project participants – client, contractor, consultant, and supplier – to meet their commitments and minimize negative impacts on construction project scope, cost, schedule (and quality, as a result). The benefits of the risk management process include identifying and analyzing risks, and improvement of project management processes and effective use of resources. This paper reports the research that aimed to discover how Lithuanian contractor perceives the significance of the construction projects risks it faces and the extent to which it employs risk response tactics